Long shot i know, but i’m wondering if anyone every solved the issue of VSS backups failing after June 2022 Update on Hyper-V 2012 R2 hosts.
Veeam has this KB Article that references a workaround/fix: https://www.veeam.com/kb4333
However, it’s not at all clear how i would make a domain account an administrator/backup operator on the File Server that hosts the SMB3.0 share (the cvm..)